Our Expertise

Almost a century of experience in Crystallogenesis

• Mastering various methods of Crystallogenesis enables us to produce the most suitable "Sapphire" product in terms of geometry and size.
• Verneuil "globules", thin plates or "EFG" tubes, "Kyropulos" bars.
• Round or rectangular preparations, ready to polish.
• Polished pieces according to your specifications.

Concerned with guaranteeing the highest quality crystalline, RSA made the choice of integrating and controlling the entire chain of production. Water electrolysis, alumina calcination and crystallization ensure a Rough Sapphire for the Swiss Watch industry with the guarantee of exceptional purity.